Note 4 - Restructuring Costs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended	9 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Mar. 31, 2011	Jun. 30, 2011	Mar. 31, 2011	Mar. 31, 2012 Merfin [Member]	Mar. 31, 2012 Americana [Member]	Mar. 31, 2011 Reduced Selling Research and Administrative Expenses [Member]
Restructuring and Related Cost, Number of Positions Eliminated			34		4	63
Restructuring and Related Cost, Incurred Cost	$ 500	$ (125)		$ 997	$ 234	$ 903	$ 200